
package hrms.util;

import java.io.OutputStream;
import java.lang.reflect.Field;
import java.util.List;

import javax.servlet.http.HttpServletResponse;

import hrms.entity.History;
import jxl.Workbook;
import jxl.format.Alignment;
import jxl.format.Border;
import jxl.format.BorderLineStyle;
import jxl.format.VerticalAlignment;
import jxl.write.Label;
import jxl.write.WritableCellFormat;
import jxl.write.WritableFont;
import jxl.write.WritableSheet;
import jxl.write.WritableWorkbook;

public class ExcelUtil {
	/***************************************************************************
	 * @param fileName
	 *            EXCEL文件名称
	 * @param listTitle
	 *            EXCEL文件第一行列标题集合
	 * @param list
	 *            EXCEL文件正文数据集合
	 * @return
	 */
	
	public static HttpServletResponse exportExcel(HttpServletResponse response,List<History> list) {
		String result = "系统提示：Excel文件导出成功";
		String[] Title={"序号",};
		String fileName="登录日志.xls";
		System.out.println("打印进入");
		
//		Test t=new Test();
//		t.setAa("11");
//		listContent.add(t);
		
		// 以下输出到EXCEL
		try {
			// 定义输出流，以便打开保存对话框______________________begin
			// HttpServletResponse response=ServletActionContext.getResponse();
			OutputStream os = response.getOutputStream();// 取得输出�?
			response.reset();// 清空输出�?
			response.setHeader("Content-disposition",
					"attachment; filename=" + new String(fileName.getBytes("GB2312"), "ISO8859-1"));
			// 设定输出文件�?
			response.setContentType("application/msexcel");// 定义输出类型
			//response.setContentType("application/msexcel;charset=ISO8859-1");
			// 定义输出流，以便打开保存对话框_______________________end

			/** **********创建工作�?*********** */
			WritableWorkbook workbook = Workbook.createWorkbook(os);

			/** **********创建工作�?*********** */

			WritableSheet sheet = workbook.createSheet("Sheet1", 0);

			/** **********设置纵横打印（默认为纵打）�?打印�?**************** */
			jxl.SheetSettings sheetset = sheet.getSettings();
			sheetset.setProtected(false);

			/** ************设置单元格字�?************* */
			WritableFont NormalFont = new WritableFont(WritableFont.ARIAL, 10);
			WritableFont BoldFont = new WritableFont(WritableFont.ARIAL, 10, WritableFont.BOLD);

			/** ************以下设置三种单元格样式，灵活备用************ */
			// 用于标题居中
			WritableCellFormat wcf_center = new WritableCellFormat(BoldFont);
			wcf_center.setBorder(Border.ALL, BorderLineStyle.THIN); // 线条
			wcf_center.setVerticalAlignment(VerticalAlignment.CENTRE); // 文字垂直对齐
			wcf_center.setAlignment(Alignment.CENTRE); // 文字水平对齐
			wcf_center.setWrap(false); // 文字是否换行

			// 用于正文居左
			WritableCellFormat wcf_left = new WritableCellFormat(NormalFont);
			wcf_left.setBorder(Border.NONE, BorderLineStyle.THIN); // 线条
			wcf_left.setVerticalAlignment(VerticalAlignment.CENTRE); // 文字垂直对齐
			wcf_left.setAlignment(Alignment.LEFT); // 文字水平对齐
			wcf_left.setWrap(false); // 文字是否换行

			/** ***************以下是EXCEL�?��大标题，暂时省略********************* */
			// sheet.mergeCells(0, 0, colWidth, 0);
			// sheet.addCell(new Label(0, 0, "XX报表", wcf_center));
			/** ***************以下是EXCEL第一行列标题********************* */
			for (int i = 0; i < Title.length; i++) {
				sheet.addCell(new Label(i, 0, Title[i], wcf_center));
			}
			/** ***************以下是EXCEL正文数据********************* */
			Field[] fields = null;
			int i = 1;
			for (Object obj : list) {
				fields = obj.getClass().getDeclaredFields();
				int j = 0;
				for (Field v : fields) {
					v.setAccessible(true);
					Object va = v.get(obj);
					if (va == null) {
						va = "";
					}
					sheet.addCell(new Label(j, i, va.toString(), wcf_left));
					j++;
				}
				i++;
			}
			/** **********将以上缓存中的内容写到EXCEL文件�?******* */
			workbook.write();
			/** *********关闭文件************* */
			workbook.close();
		} catch (Exception e) {
			result = "系统提示：Excel文件导出失败，原因：" + e.toString();
			System.out.println(result);
			e.printStackTrace();
		}
		return response;
	}

}
	
	/** 
	 * 导出excel 
	 * @return 
	 */
	/*  
	public String excelPage(){  
	    ExportExcel excel=new ExportExcel();  
	    String str="";  
	    try {  
	        str = new String(getHTTP.getRequest().getParameter("wineOrg.orgName").getBytes("iso8859-1"),"UTF-8");  
	    } catch (UnsupportedEncodingException e) {  
	        // TODO Auto-generated catch block  
	        e.printStackTrace();  
	    }  
	    wineOrg.setOrgName(str);  
	    List<Object> li=service.exportExcel(wineOrg);  
	    String[] Title={"机构ID","会员编号","类别","名称","省ID","省名�?,"城市ID","城市名称","详细地址","联系�?,"性别","联系手机","联系电话","传真","邮箱","QQ","生日","积分","客户等级","现金账户余额","结算方式","客户类型","购买次数","购买支数","创建人ID","创建人姓�?,"create_time","del","STS","备注","负责人ID","负责人姓�?,"审核标识","审核人ID ","审核人姓�?,"审核日期","分配人ID","分配人姓�?,"分配日期","修改人ID","修改人姓�? ","修改时间"};  
	    excel.exportExcel("客户资料信息.xls",Title, li);   
	    return SUCCESS;  
	}*/

